diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index bd353a2ed3..bd4f625dc4 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -187,6 +187,7 @@ else( WIN32 )
 			if( GTK2_FOUND )
 				set( ZDOOM_LIBS ${ZDOOM_LIBS} ${GTK2_LIBRARIES} )
 				include_directories( ${GTK2_INCLUDE_DIRS} )
+				link_directories( ${GTK2_LIBRARY_DIRS} )
 			else( GTK2_FOUND )
 				set( NO_GTK ON )
 			endif( GTK2_FOUND )